Building on their reputation as the tuner of choice for the 07.5-2011 6.7L Dodge Cummins H&S Performance announces the release of tuning for the 06-07 5.9L Cummins. H&S also says that their Overdrive Transmission Tuning will be available next week. On the initial release the power levels will be Stock, 60HP, 120HP and 200HP. As with all other H&S Tuners these levels will have the ability to shift-on-the-fly. You also have the ability to adjust low boost fueling, timing and change the maximum rpm settings. We are currently testing it on our 07 Mega Cab and results have been very favorable.